For example, if the property was purchased for $200,000, the cap rate would be calculated as follows: Cap rate = $14,000 / $200,000 = 7%.Gross rental multiplier (GRM): The gross rental multiplier is a quick way to estimate the value of a rental property based on the income it generates.

The cash flow (NOI) is just the numerator in the equation, you have to finish the math.As far as the time to payoff the property, this is generally measured by calculating the Gross Rent Multiplier.

What about Gross Rent Multiplier? 

This is a performance metric used in the hotel industry and is calculated by multiplying a properties average daily rate (ADR) by its occupancy rate.

I'm getting financing in Mexico but that's because of my connections and it literally multiply my already high unleveraged returns.

I would break my anticipated costs, reserves, and funding for hobbies, misc, and further investment growth into a monthly figure and want to reach 5x that amount per month from banker speak it would sound like 5x debt coverage ratio.So it's a multiplier rather than being a number like most other goals you may see on BP (10k a month etc). 

If anything becoming a landlord will initially multiply your problems in the short run... lolYou see a lot of wide-eyed people come on BiggerPockets who think they're going to get rich quick.

Also the (GRM) gross rent multiplier

Otherwise, to be fair to all applicants, you'd need to adjust for retirement plan contributions, tax deductions, Social Security Insurance, etc.You can always make your requirements more or less strict, just by adjusting the multiplier you require.

Shorthand currently for the twin cities pricing is projected rents times 1.1 (A/B class suburban good area Wayzata, Prior Lake, White Bear Woodbury types), (1 B/C class good area but surrounded by bad), (.9 C/D class poor areas), (.8 D class areas you wouldn't bring you mom to see the house this could be even less)  after multiplying by the above numbers multiple by 100.